External Dacryocystorhinostomy: outcomes after the introduction of two new forceps and transnasal endoscopy.
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003608:Dacryocystorhinostomy / Q000379:methods*; D004724:Endoscopy / Q000379:methods*; D006801:Humans; D008875:Middle Aged; D009296:Nasal Cavity / Q000473:pathology*; D009301:Nasolacrimal Duct / Q000473:pathology; D013525:Surgical Instruments; D016896:Treatment Outcome